The Iskra FM30 is a directional FM reception antenna covering the full FM broadcast band of 87.5–108 MHz. With three elements and a gain of 4.5–5.5 dBi, it provides a focused reception pattern for improving FM signal quality compared to omnidirectional alternatives.

The antenna connects via an F-type female connector and mounts on masts with an outside diameter of 20–62 mm. An inclination adjustment of 0–10° allows fine-tuning of the vertical aim toward the transmitter.

Key Features

• Directional FM reception covering 87.5–108 MHz
• 3-element construction delivering 4.5–5.5 dBi gain
• Front-to-back (F/B) ratio of 10–15 dB for effective rejection of rear interference
• Horizontal beam width 70°, vertical beam width 110°
• F-type female coaxial connector
• Adjustable inclination from 0° to 10°
• Mast mounting for mast outside diameters of 20–62 mm

Product Benefits

• Directional pattern with 10–15 dB F/B ratio reduces interference from transmitters behind the antenna
• 4.5–5.5 dBi gain improves reception in areas with moderate FM signal levels
• The wide vertical beam width of 110° accommodates installations where precise vertical alignment is difficult
• Compatibility with masts from 20 to 62 mm diameter gives flexibility across different installation setups

Technical Specifications

• Model: FM30
• Type: Directional FM antenna
• Frequency range: 87.5–108 MHz (FM band)
• Number of elements: 3
• Gain: 4.5–5.5 dBi
• F/B ratio: 10–15 dB
• Beam width: Horizontal 70°; Vertical 110°
• Antenna length: 116 cm
• Impedance: 75 Ohm
• Connector: F-type female
• Inclination adjustment: 0–10°
• Mast diameter (mounting): 20–62 mm
• In the box: 1 × Iskra FM30

Why You'll Love It

• The 3-element directional design is a proven approach for FM installations in areas affected by multipath or co-channel interference
• The F-type female connector is a standard fitting compatible with common coaxial cables and adaptors
• At 116 cm the antenna is compact enough for residential mast installations without requiring specialist mounting hardware
• The inclination adjustment allows angle optimisation without repositioning the whole mast bracket